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bazaltina [42]
3 years ago
5

Question 11 Saved

Physics
2 answers:
BaLLatris [955]3 years ago
8 0
2is the right anwser


Ipatiy [6.2K]3 years ago
7 0
Yes 2 is the right one
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How much energy is needed to heat and melt 3.0 kg of copper initially at 83°C?
Ne4ueva [31]

As we know that in order to melt the copper we need to take the temperature of copper to its melting point

So here heat required to raise the temperature of copper is given as

Q = ms\Delta T

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Specific heat capacity of copper = 385 J/kg C

now we have

Q = 3(385)(1085 - 83)

Q = 1157310 J

Q = 1157.3 kJ

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Q = mL

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3 years ago
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